40235818 has 16 divisors (see below), whose sum is σ = 71354880. Its totient is φ = 16649136.

The previous prime is 40235779. The next prime is 40235849. The reversal of 40235818 is 81853204.

It is a self number, because there is not a number n which added to its sum of digits gives 40235818.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49146 + ... + 49957.

It is an arithmetic number, because the mean of its divisors is an integer number (4459680).

Almost surely, 2^40235818 is an apocalyptic number.

40235818 is a deficient number, since it is larger than the sum of its proper divisors (31119062).

40235818 is a wasteful number, since it uses less digits than its factorization.

40235818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99141.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 40235818 is about 6343.1709735747. The cubic root of 40235818 is about 342.6659447684.

The spelling of 40235818 in words is "forty million, two hundred thirty-five thousand, eight hundred eighteen".